Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from 84°F (28.9°C) in August to a still warm 78.1°F (25.6°C). Grand Pass's temperature lowers to a mean of 58.6°F (14.8°C) during the nights in September.Humidity
In Grand Pass, the average relative humidity in September is 75%.Rainfall
In Grand Pass, in September, it is raining for 12.5 days, with typically 2.6" (66mm) of accumulated precipitation. In Grand Pass, during the entire year, the rain falls for 136.7 days and collects up to 27.87" (708mm) of precipitation.Snowfall
In Grand Pass, snow does not fall in April, June through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine in Grand Pass, Missouri, is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. To protect against the Sun's most potent rays, avoid direct exposure around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Grand Pass in September?
What is the average humidity in September in Grand Pass?
How much does it rain in Grand Pass in September?
When it does not snow in Grand Pass?
Does it snow in Grand Pass in September?
What is the average length of the day in September in Grand Pass?
When is the sunrise / sunset in September in Grand Pass?
How long on average sun shines in September in Grand Pass?
How high is the UV index in September in Grand Pass?
Average temperature in September
Grand Pass, MO
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Grand Pass, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Grand Pass, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Grand Pass, MO
- Average humidity in September: 75%
The months with the highest relative humidity are May, June, July and August (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Grand Pass, MO
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Grand Pass, MO
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Grand Pass, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are April, June, July, August and September (0").
Average snowfall days in September
Grand Pass, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grand Pass, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Grand Pass, MO
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (21.4 days).
The months with the least sunshine days are May and June (12.1 days).
Average UV index in September
Grand Pass, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grand Pass, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Grand Pass, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand Pass, Missouri, USA
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